2005 SUZUKI SWIFT antenna

Downloaded from www.Manualslib.com manuals search engine 10E-4 Keyless Start System:
Door Lock Function of Keyless Start SystemS7RS0BA501004
When the request switch (1) incorporated in the outside handle of the driver side door, front passenger side door or
rear end door is pushed, the keyless start control modul e (2) activates the center antenna (3) and luggage room
antenna (4) to send out the radio wave in the vehicle compartm ent to check if the remote controller (5) is in the vehicle
compartment or not. When the keyless start control module receives no signal from the remote controller (i.e., the
remote controller does not exist in the vehicle compartment) , it activates the antenna (6) of the door of which the
request switch has been pushed to send the request signal out of the compartment.
If the remote controller exists within the door lock operati on area, it receives the request signal sent from the above
said antenna, sends the ID code of the remote controller and the request signal to the keyless start control module and
at the same time, it makes the operatio n indicator lamp (7) of the remote controller light up. Lighting of the operation
indicator lamp indicates that the remote controller sent the ID code and the request signal.
The keyless start control module compares the ID code sent from the remote controller with the ID code registered in
the keyless start control module. If both ID codes match, the keyless start control module outputs the lock or unlock
request signal (depending on the door lock switch (8) stat e then) to BCM (9). When BCM receives such signal through
CAN communication from the keyless start control module, it activates the door lock actuator to lock or unlock doors.
When the keyless start control module receiv es a signal from the remote controller (i.e., the remote controller exists in
the vehicle compartment), the function of the keyless start system to prevent the remote controller from being closed in
the vehicle works and the keyless start control module sends a request signal to unlock doors to BCM. In this way,
doors are kept unlocked.
Also, when the driver or passenger has left the vehicl e with the remote controller left behind in the vehicle
compartment and locked doors by using the door lock knob or manual door lock switch, the function to prevent the
remote controller from being closed in the vehicle works to unlock doors.
Furthermore, when ID codes of the remote controller and keyless start control module do not match or the remote
controller exists outside of the operation area, doors are not locked or unlocked even if the request switch of the
outside handle is operated.
9 2
vi)
v)
vii) iv)
i) ii)
iii)
iii)iii)
ii)
iii)
iii)
iii)
3
5
8
6
1 4
7
[A]: i) ~ viii)
viii)
I4RS0BA50003-02
[A]: Signal flow

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-5
Operation Area of Remote ControllerS7RS0BA501005
Shown below are the operation areas of the remote controller for the keyless engine start function and door lock
function of the keyless start system.
However, even when the remote controller is within the operation area as shown above, there are cases where the
keyless start system doesn’t work under certain conditi ons as described below. And when the keyless engine start
function doesn’t work, the key indicator la mp in the combination meter may light up.
• Doors cannot be locked or unlocked using the doo r lock function of keyless start system when:
– The remote controller which has been registered in the keyless start control module and another un-registered one are both carried at the same time
– The remote controller is kept in some metallic co ntainer which disturb radio wave transmission/reception
– One of doors is open
– The ignition key is inserted in the ignition key cylinder
• The function of the keyless start system to prevent the remote controller from being closed in the vehicle
compartment doesn’t work when:
– The remote controller is in the door pocket or in the glove box
– The remote controller is kept in some metallic co ntainer which disturb radio wave transmission/reception
– The remote controller is placed close to outside of the vehicle compartment (such as on the instrument panel beside the front window shield glass or in a corner of the luggage room)
• The ignition knob switch cannot be turned usin g the keyless engine start function fails to turn:
– The remote controller which has been registered in the keyless start control module and another un-registered one are both carried at the same time
– The remote controller is kept in some metallic cont ainer which disturbs radio wave transmission/reception
– The ignition knob switch has been pushed for 5 seconds or longer
– The remote controller is placed close to outside of the vehicle compartment (such as on the instrument panel beside the front window shield glass or in a corner of the luggage room)
[A] [B]
[C]
1
1
1
25
6
3
3 4
2
2
I4RS0BA50004-02
[A]: Door lock function of keyless start system 1. About 80 cm (31.5 in, 2.6 ft)4. Luggage room antenna
[B]: Function of keyless start system to prevent remote controller from being closed in vehicle compartment 2. Each door antenna
5. Vehicle compartment including luggage room
[C]: Keyless engine start function 3. Center antenna6. Vehicle compartment excluding luggage room

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-7
Schematic and Routing Diagram
Keyless Start System Electric Wiring Circuit DiagramS7RS0BA502001
BLK/ORNG42-9
G42-15
G42-14
G42-37G42-33
G42-16
G42-20G42-29G42-30
G42-36
G42-32G42-10
G42-34
G42-11BLU/WHT
WHT/RED
WHT/RED
WHT/RED
PNK/BLKGRY/BLU
BLU/RED
YEL
PPL
RED/BLK
5V5V
5V5V
5V5V
5V
12V
12V
G42-2G42-1BLUORNWHTREDWHTREDG42-18G42-19G28-9G28-7
BLU/YEL
ORN
G42-24G42-23BLK/YELWHT/RED
G42-7GRN/WHTLT G R NG42-8
G42-5G42-6GRNWHT/BLK
G42-4G42-3WHT/GRNRED/BLU
BLK/YELBRN/YELBRNG22-3
G22-1
G22-2G22-5
G22-4
G22-6
G22-7G22-8
WHT/RED
WHT/RED
G37-4
REDWHTREDWHT
G28-10G28-8WHTRED
RED
WHT
G37-2
E46-2
E46-1E03-6
E03-12
G28-32
6
7
8
9
10
11
12
13
14
15 1
18
20
1617
2
4 5 3
1234567891011
141516
36 34 33 32 30 29 24 23
37
181920
[A]
REDWHTE23-18
E23-3
19
REDWHTE03-8
E03-10
I6RS0CA50001-01
[A]: Keyless start control module connector (viewed from
harness side) 7. Passenger side door antenna 14. Driver side door lock switch
1. Keyless start control module 8. Rear end door antenna 15. Passenger side door lock switch
2. Steering lock unit 9. Center antenna 16. Combination meter
3. Steering lock solenoid 10. Luggage room antenna 17. Key indicator lamp
4. Ignition knob switch 11. Driver side door request switch 18. BCM
5. Key reminder switch 12. Passenger side door request switch 19. ECM
6. Driver side door antenna 13. Rear end door request switch 20. ABS control module

Downloaded from www.Manualslib.com manuals search engine 10E-12 Keyless Start System:
DTC ClearanceS7RS0BA504009
1) Perform Steps 1) through 5) of DTC check procedure and have DTC indicated.
2) Open driver side door.
3) Close driver side door and within 10 seconds after that, perform Steps a) to c) described below.
a) Push unlock side (3) of driver side manual door lock switch (1).
b) Push lock side (2) of driver side manual door lock switch.
c) Repeat Steps a) and b) 3 times. At the end of Step c), DTCs are cleared and key
indicator lamp indicates DTC No. 12 (Normal).
4) After completing DTC clearance, remove ignition key from ignition key cylinder.
Keyless Start System Symptom DiagnosisS7RS0BA504010
Door Lock Function of Keyless Start System
NOTE
Before performing trouble diagnosis procedure for door lock function of keyless start system, check
that power door lock system operates properly referring to “Power Door Lock System Operation
Inspection in Section 9F”. If power door lock system does not operate properly, go to “Power Door
Lock System Symptom Diagnosis in Section 9F”.

1
3 2
I4RS0BA50011-02
Condition
Possible cause Correction / Reference Item
All doors can not be
locked / unlocked by all of
door request switches Circuit fuse(s) blown
Replace fuse(s) and check for short circuit.
Remote controller battery dead Replace battery.
Remote controller faulty Check remote controller for operation referring
to “Remote Controller Inspection”.
Wiring or grounding faulty Repair circuit.
Antennas or keyless start control
module faulty Check input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Mo
dule and Its Circuits”.
BCM faulty Check input and output signal of BCM referring
to “Inspection of BCM and its Circuits in
Section 10B”.
All doors can not be
locked / unlocked by any
one of door request
switch Request switch faulty
Check request switch for operation referring to
“Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection”.
Wiring or grounding faulty Repair circuit.
Antennas or keyless start control
module faulty Check input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Mo
dule and Its Circuits”.
BCM faulty Check input and output signal of BCM referring
to “Inspection of BCM and its Circuits in
Section 10B”.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-13
Keyless Engine Start Function
NOTE
Before performing symptom diagnosis procedure for keyless engine start system, check that engine
starts by using ignition key. If it cannot be started by using ignition key, go to “Engine Symptom
Diagnosis in Section 1A”.

Keyless Start System Operation InspectionS7RS0BA504011
Keyless engine start operation
1) Sit in driver seat with re mote controller carried with
you.
2) Check that all doors are closed and ignition key is not inserted in ignition key cylinder.
3) While pushing ignition knob switch (1) of steering lock unit, check if ignition knob switch can be turned
from its lock position.
If key indicator lamp (2) in combination meter lights
in blue and ignition knob switch can be turned from
its lock position in this check, keyless engine start
operation is in good condition.
If key indicator lamp in combination meter lights in
red and ignition knob switch cannot be turned from
its lock position in this check, go to “Keyless Start
System Check”.
NOTE
Pushing ignition knob switch for 5 seconds
or longer causes function to protect steering
lock releasing solenoid against heat to work.
Then steering lock unit stops energizing
solenoid, preventing ignition knob switch
from turning. At the same time, key indicator
lamp in combination mete r turns off. In such
case, take your hand off from ignition knob
switch once and operate it again.

Condition Possible cause Correction / Reference Item
Engine can not be started
by turning Ignition knob
switch Circuit fuse(s) blown
Replace fuse(s) and check for short circuit.
Remote controller battery dead Replace battery.
Remote controller faulty Check remote controller for operation referring
to “Remote Controller Inspection”.
Steering lock unit faulty Check steering lock unit for operation referring
to “Steering Lock Unit Inspection”.
Wiring or grounding faulty Repair circuit.
Antennas or keyless start control
module faulty Check input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Mo
dule and Its Circuits”.
ECM faulty Check input and output signal of ECM referring
to “Inspection of ECM and Its Circuits in
Section 1A”.
1
2
I4RS0BA50012-01

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-15
Terminal Number Circuit Normal
Vo l ta g e Condition
G42-1 Driver side door antenna (–) *0 – 5 V Refer to “Reference waveform No. 1: ”
G42-2 Driver side door antenna (+)
G42-3 Rear end door antenna (–) *0 – 5 V Refer to “Reference waveform No. 1: ”
G42-4 Rear end door antenna (+)
G42-5 Center antenna (–) *–2 – 2 V Refer to “Reference waveform No. 2: ”
G42-6 Center antenna (+) *–10 – 15 V
G42-7 Luggage room antenna (–) *–10 – 10 V Refer to “Reference waveform No. 3: ”
G42-8 Luggage room antenna (+) *–8 – 14 V
G42-9 Ground for keyless start control module 0 – 1 V Ignition switch is at all positions
G42-10 Power source 10 – 12 V Ignition switch is at all positions
G42-11 Ignition switch (ACC signal) 10 – 12 V Ignition switch is at ACC or ON position
0 – 1 V Ignition switch is at any position other than
ACC or ON position
G42-12 — — —
G42-13 — — —
G42-14 Ignition switch (Key reminder signal) 10 – 12 V Insert ignition key to ignition key cylinder
0 – 1 V Pull out ignition key from ignition key
cylinder
G42-15 Ignition switch (ON signal) 10 – 12 V Ignition switch is at ON position
0 – 1 V Ignition switch is at any position other than
ON position
G42-16 Driver side door request switch 10 – 12 V
Request switch of driver side door is
released
0 – 1 V Request switch of driver side door is
pushed
G42-17 — — —
G42-18 CAN communication line (low) *1.6 – 2.5 V Refer to “Reference waveform No. 4: ”
G42-19 CAN communication line (high) *2.5 – 3.6 V
G42-20 Power supply for steering lock unit 4 – 6 V Full time
G42-21 — — —
G42-22 — — —
G42-23 Passenger side door antenna (–) *0 – 5 V Refer to “Reference waveform No. 1: ”
G42-24 Passenger side door antenna (+)
G42-25 — — —
G42-26 — — —
G42-27 — — —
G42-28 — — —
G42-29 Signal for steering lock unit 4 – 6 VIgnition knob switch is at any position other
than ON and OFF position
*0 – 5 V Refer to “Reference waveform No. 5: ”
G42-30 Ground for steering lock unit 0 – 1 V Full time
G42-31 — — —
G42-32 Rear end door request switch 10 – 12 V Request switch of rear end door is released
0 – 1 V Request switch of rear end door is pushed
G42-33 Driver side door lock switch 0 – 1 V
Driver side door is at unlock position and
passenger side door is at lock position
4 – 6 V Driver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G42-34 Ignition knob switch 10 – 12 V
When pushing ignition knob switch of
steering lock unit
0 – 1 V When releasing ignition knob switch of
steering lock unit
G42-35 — — —
G42-36 Passenger side door request switch 10 – 12 V
Request switch of passenger side door is
released
0 – 1 V Request switch of passenger side door is
pushed

Downloaded from www.Manualslib.com manuals search engine 10E-16 Keyless Start System:
Reference waveform No. 1
Driver, passenger and rear end door antenna request
signals (Request signal (1) transmitted by each door
antenna when each door request switch is pushed)Reference waveform No. 2
Center antenna signal
(Request signal (1) transmitted by center antenna when
each door request switch is pushed)
G42-37 Passenger side door lock switch
0 – 1 V
Passenger side door is at unlock position
and driver side door is at lock position
4 – 6 V Driver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G42-38 — — —
G42-39 — — —
G42-40 — — —
Terminal
Number Circuit Normal
Vo l ta g e Condition
Measurement
terminalDriver side door antenna
• CH1: “G42-2” to “G42-9”
• CH2: “G42-1” to “G42-9”
Passenger side door antenna
• CH1: “G42-24” to “G42-9”
• CH2: “G42-23” to “G42-9”
Rear end door antenna
• CH1: “G42-4” to “G42-9”
• CH2: “G42-3” to “G42-9”
Oscilloscope setting CH1: 5 V/DIV, CH2: 5V/DIV
TIME: 40 ms/DIV
Measurement
condition Request switch of each door is
pushed with remote controller
carried
I4RS0BA50015-02
Measurement
terminal
CH1: “G42-6” to “G42-9”
CH2: “G42-5” to “G42-9”
Oscilloscope setting CH1: 5 V/DIV, CH2: 2 V/DIV
TIME: 20 ms/DIV
Measurement
condition • Ignition knob switch of steering
lock unit is pushed
• Any one of door is opened
• Request switch of each door is pushed
I4RS0BA50016-02

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-17
Reference waveform No. 3
Luggage room antenna signal
(Request signal (1) transmitted by luggage room
antenna when each door request switch is pushed)
Reference waveform No. 4
CAN communication signals
(CAN signal communicated to each control module
when ignition switch is turned ON)Reference waveform No. 5
Steering lock unit signal
(Signal (1) communicated between keyless start control
module and steering lock unit when measurement
condition described below applies)
Measurement
terminal CH1: “G42-8” to “G42-9”
CH2: “G42-7” to “G42-9”
Oscilloscope setting CH1: 10 V/DIV, CH2: 10 V/DIV
TIME: 20 ms/DIV
Measurement
condition • Any one of door is opened
• Request switch of each door is
pushed
Measurement
terminal CH1: “G42-19” to “G42-9”
CH2: “G42-18” to “G42-9”
Oscilloscope setting CH1: 1 V/DIV, CH2: 1V/DIV
TIME: 40
µs/DIV
Measurement
condition Ignition switch is at ON position
1. CAN communication line signal (high)
2. CAN communication line signal (low)
I4RS0BA50017-02
I5RS0DA50002-01
Measurement
terminal
CH1: “G42-29” to “G42-9”
Oscilloscope setting CH1: 2 V/DIV
TIME: 4 ms/DIV
Measurement
condition • Ignition knob switch of steering
lock unit is pushed
• Any one of door is opened
• Request switch of each door is pushed
I4RS0BA50019-02